Transparent on-the-fly encryption of logical drives for Windows 3.1, 95, ME and 2000

Dos TSR program that can encrypt both floppy and hard disk partitions. Compatible with PGP 2.x keyfles. I have used this and it works great. Unfortunately it doesn't look like the programmer has made any enhancements to it for a while.

A comprehensive archive of cryptography programs. Includes a lot of filesystems. (Available on CD or their ftp site)

As of version 6.5, PGPdisk is not longer included with the freeware versions. If you want PGPdisk 6.5 or later, you are required to buy one of the commercial versions. However, v6.0.2i is available here in both mac and pc versions.

Sells software protection devices, copy protection, license management and encryption technology and anti-piracy solutions.

The first security system that protects volumes, files, folders and programs quickly and easily

BPP Disk creates encrypted disk drives which can be mounted at any time. The software is fast, seamless, integrated and comes with ultra-high security 256-bit PMC encryption.

Hard Disk encryption kit, the hardware solution for PC data security.

Control Break provides encryption and security tools which are both secure, and easy to administer - designed primarily for the large enterprise, they also offer a range of consumer verisons.

PGP products keep your confidential information secure.

Disk drive that automatically encrypts all data blocks written to it and then transparently decrypts them for any application, if logged in. Once logged out, the special disks are completely unreadable by unauthorized users and thieves.

Enterprise-wide multi-platform security product. Transparently access encrypted files. 100% transparency, zero administration. Filesystem independent. Network ready.

Delivers full hard disk encryption: automatic, on-the-fly data protection for your entire hard drive. Easy centralized administration for efficient corporate use.

Create and manage a number of encrypted disk volumes. Runs under both DOS and Windows 9x. Not updated since '96

Sentry 2020 for Windows Mobile/Pocket PC is an enterprise security tool utilizing transparent encryption to protect important information stored on Pocket PC computers. Seamlessly encrypts documents while they are being accessed by Pocket Word, Pocket Excel and other applications.

Enova Technology specializes in developing,manufacturing and marketing real-time hard disk encryption chipset.

Encryption application that supports encrypted logical drives.

Describes Utimaco data encryption software offerings for the U.S. market. Offerings include full hard disk encryption, LAN security, PDA Security, file encryption, email encryption, and hard disk partioning solutions.

Short description of The CryptoGraphic Disk Driver (CGD) for NetBSD and a reference to the FREENIX paper written about it.

SafeBit features military strength on-the-fly AES encryption, by creating virtual disk drives, where you can hide files and folders.

TrueCrypt can create a virtual encrypted disk within a file and mount it as a real disk. It can also encrypt an entire hard disk partition or storage device. Supports plausible deniability.

DiskISE features 1280 bit hard drive encryption software, automatic secure file deletion, encrypted password manager, command prompt support, and more.